{"id":1241,"date":"2021-10-03T08:07:10","date_gmt":"2021-10-03T08:07:10","guid":{"rendered":"https:\/\/rolexiron.com\/?page_id=1241"},"modified":"2021-10-03T08:07:11","modified_gmt":"2021-10-03T08:07:11","slug":"manufacture-of-q-series-railway-signalling-relays-to-meet-all-types-of-signaling-circuit-application","status":"publish","type":"page","link":"https:\/\/rolexiron.com\/index.php\/manufacture-of-q-series-railway-signalling-relays-to-meet-all-types-of-signaling-circuit-application\/","title":{"rendered":"Manufacture of Q-SERIES RAILWAY SIGNALLING RELAYS to meet all types of Signaling Circuit Application"},"content":{"rendered":"\n<p>Manufacture of Q-SERIES RAILWAY SIGNALLING RELAYS to meet all types of Signaling Circuit Application<\/p>\n\n\n\n<p>Manufacturing of Q SERIES RAILWAY SIGNALLING RELAYS to meet all types of Signaling Circuit Applications such as Route Relay Interlocking, Panel Interlocking, Automatic Signalling, Point Operation and Track Circuiting. Each individual type of relay undergoes extensive TYPE TESTING by Research Design and Standards Organization (R.D.S.O., Lucknow) of the Indian Railways and approved for use in Railway signalling circuits.<\/p>\n\n\n\n<p>Manufacture of RDSO Approved QN1 Neutral Line Relays<br>Manufacture of RDSO Certified QN1 Neutral Line Relay<br>Manufacture of RDSO Approved QNA1 Neutral Line Relays<br>Manufacture of RDSO Certified QNA1 Neutral Line Relay<br>Manufacture of RDSO Approved QS3 Neutral Line Relays<br>Manufacture of RDSO Certified QS3 Neutral Line Relay<br>Manufacture of RDSO Approved QN1K Neutral Line Relays<br>Manufacture of RDSO Certified QN1K Neutral Line Relay<br>Manufacture of RDSO Approved QNN1 Neutral Line Relays<br>Manufacture of RDSO Certified QNN1 Neutral Line Relay<br>Manufacture of RDSO Approved QNNA1 Neutral Line Relays<br>Manufacture of RDSO Certified QNNA1 Neutral Line Relay<br>Manufacture of RDSO Approved QNA1K Neutral Line Relays<br>Manufacture of RDSO Certified QNA1K Neutral Line Relay<br>Manufacture of RDSO Approved QT2 Track Relays<br>Manufacture of RDSO Certified QT2 Track Relay<br>Manufacture of RDSO Approved QTA1 Track Relays<br>Manufacture of RDSO Certified QTA1 Track Relay<br>Manufacture of RDSO Approved QTA2 Track Relays<br>Manufacture of RDSO Certified QTA2 Track Relay<br>Manufacture of RDSO Approved QBAT Track Relays<br>Manufacture of RDSO Certified QBAT Track Relay<br>Manufacture of RDSO Approved QBA1 Biased Relays<br>Manufacture of RDSO Certified QBA1 Biased Relay<br>Manufacture of RDSO Approved QBBA1 Biased Relays<br>Manufacture of RDSO Certified QBBA1 Biased Relay<br>Manufacture of RDSO Approved QBCA1 Biased Relays<br>Manufacture of RDSO Certified QBCA1 Biased Relay<br>Manufacture of RDSO Approved QUCX1 Lamp Proving Relays<br>Manufacture of RDSO Certified QUCX1 Lamp Proving Relay<br>Manufacture of RDSO Approved QECX51 Lamp Proving Relays<br>Manufacture of RDSO Certified QECX51 Lamp Proving Relay<br>Manufacture of RDSO Approved QECX52 Lamp Proving Relays<br>Manufacture of RDSO Certified QECX52 Lamp Proving Relay<br>Manufacture of RDSO Approved QECX53 Lamp Proving Relays<br>Manufacture of RDSO Certified QECX53 Lamp Proving Relay<br>Manufacture of RDSO Approved QECX61 Lamp Proving Relays<br>Manufacture of RDSO Certified QECX61 Lamp Proving Relay<br>Manufacture of RDSO Approved QFPR1 Lamp Proving Relays<br>Manufacture of RDSO Certified QFPR1 Lamp Proving Relay<br>Manufacture of RDSO Approved QECX20 Lamp Proving Relays<br>Manufacture of RDSO Certified QECX20 Lamp Proving Relay<br>Manufacture of RDSO Approved QECX2 Lamp Proving Relays<br>Manufacture of RDSO Certified QECX2 Lamp Proving Relay<br>Manufacture of RDSO Approved QECX3 Lamp Proving Relays<br>Manufacture of RDSO Certified QECX3 Lamp Proving Relay<br>Manufacture of RDSO Approved QL1 Latch Relays<br>Manufacture of RDSO Certified QL1 Latch Relay<br>Manufacture of RDSO Approved QSPA1 Slow In Action Relays<br>Manufacture of RDSO Certified QSPA1 Slow In Action Relay<br>Manufacture of RDSO Approved QSRA1 Slow In Action Relays<br>Manufacture of RDSO Certified QSRA1 Slow In Action Relay<br>Manufacture of RDSO Approved QNHX1 Relays<br>Manufacture of RDSO Certified QNHX1 Relay<br>Manufacture of RDSO Approved QNHXC1 Relays<br>Manufacture of RDSO Certified QNHXC1 Relay<\/p>\n\n\n\n<p>DESCRIPTION RELAY TYPES DETAILS<br>Neutral Line Relays QN1,QNA1,QS3,QN1K,QNN1,QNNA1,QNA1K<br>Track Relays QT2,QTA1,QTA2,QBAT<br>Biased Relays QBA1,QBBA1,QBCA1<br>Lamp Proving QUCX1,QECX51,QECX52,QECX53,QECX61,QFPR1,QECX20.QECX2,QECX3<br>Latch Relays QL1<br>Slow In Action Relays QSPA1,QSRA1<br>Other Relays QNHX1,QNHXC1<\/p>\n\n\n\n<p>PLUG IN TYPE RELAY<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>Introduction<br>A relay is an electromagnetic device, which is used<br>for closing or opening of an electrical circuit. The<br>relay may be classified as Shelf type and Plug-InType<br>Plug-in-type relays which are plugged in to prewired terminal boards. It works on electromagnetic<br>principle. Each relay has a base electromagnet,<br>armature, contact spring, contacts, transparent cover,<br>and handle. A non-magnetic residual pin is fixed on<br>the inner face of armature, in all relay except<br>magnetic latch relays.<br>When current is applied through the coil, it sets up a<br>magnetic flux through the bar magnet, core, L shape<br>heelpiece and armature.<br>The flux causes armature to attract towards the pole<br>face. Armature picks up and fronts contact closes.<br>The residual pin maintains small air gap in attracted<br>position.<br>When current interrupts, magnetic flux collapses the<br>contact spring fixed above the armature helps in<br>restoring to its full released position thus front<br>contacts open.<\/li><\/ol>\n\n\n\n<p>1.1. Classification of Signaling Relays<br>Relays may be classified into various ways<br>depending upon the following factors:<br>i) Mounting of relay<br>\u2022 Shelf Type<br>\u2022 Plug \u2013in type<br>ii) Feed source<br>\u2022 DC Relay<br>\u2022 AC Relay<br>\u2022 Electronic Relay<br>DC relays are further classified as under<br>\u2022 Neutral<br>\u2022 Polar<br>\u2022 Neutral Polar<br>iii) Contact material<br>\u2022 Proved Type<br>\u2022 Non proved Type<br>iv) Application<br>\u2022 Track<br>\u2022 Line<br>\u2022 Special<br>v) Importance \/ vitality<br>\u2022 Vital<br>\u2022 Non Vital<br>Now a days Electronic relays are also used in<br>signalling circuit to achieve time delay.<br>1.2 Definition<br>i) Non \u2013 fusible contacts<br>A pair of contacts in which one contact element<br>comprises of non \u2013 fusible material which present<br>practically no risk of welding of contacts.<br>ii) Carbon contacts<br>\u201cCarbon\u201d in the expression \u201c Carbon to metal<br>contacts\u201d is used as a general term covering graphite<br>and compounds and mixtures of carbon and metals.<br>iii) Metal contacts<br>Metal in the expression \u201cCarbon to metal contacts\u201d<br>and \u201cMetal to Metal contacts\u201d is used as a general<br>term covering the use of silver, silver cadmium<br>oxide, tungsten, platinum or any other suitable<br>material to an approved specification.<br>iv) Front contact<br>That contact which is made with the arm contact<br>when the relay is energised.<br>v) Back contact<br>That contact which is made when the relay is de<br>energised.<br>vi) Arm contact (Armature contact)<br>That contact which is the movable part of the pair of<br>contacts and makes with front contact when the relay<br>is energised and with back contact when the relay is<br>de-energised.<br>vii) Arm<br>The movable part of the pair of contacts.<br>viii) Dependent contact<br>The condition in which a movable arm contact<br>connects to a front contact when the relay is<br>energised. And the same arm contact connects to a<br>back contact when the relay is de-energised.<br>ix) Independent contact<br>The condition in which the movable arm contact<br>connects to either a front or a back contact but not to<br>both.<br>x) Pickup value (Operate value)<br>The value of the current or ampere turns which is<br>just sufficient to close all the front contacts of relay<br>under specified conditions.<br>xi) Drop \u2013away (release) value<br>The value of the current or ampere turns at which all<br>the front contacts of relay get open under specified<br>conditions.<br>xii) Proved type Relay<br>Means a relay having Metal to Metal contacts. They<br>are used for controlling non vital circuits and hence<br>also called as non vital relays.<br>xiii) Non proved Relays<br>Means a relay having Metal to Carbon contacts, as<br>front contact. They are used for controlling vital<br>circuits and hence also called as vital relays.<\/p>\n\n\n\n<p>Regards,<\/p>\n\n\n\n<p><strong>CONTACT PERSON :<\/strong><\/p>\n\n\n\n<p><strong>MUKESH SHAH<br>Director<br>Mobile No. 0091 \u2013 9820292499<br>Email \u2013 marketing@rolexmetals.com<\/strong><\/p>\n\n\n\n<p><strong>ROLEX METAL DISTRIBUTORS<br>57-A Khatargalli<br>Thakurdwar<br>Mumbai \u2013 400 002 India<br>0091-22-23858802<br>0091-22-23823963<br>0091-22-23898724<br>marketing@rolexmetals.com<br>www.rolexmetals.com<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Manufacture of Q-SERIES RAILWAY SIGNALLING RELAYS to meet all types of Signaling Circuit Application Manufacturing of Q SERIES RAILWAY SIGNALLING RELAYS to meet all types of Signaling Circuit Applications such as Route Relay Interlocking, Panel Interlocking, Automatic Signalling, Point Operation and Track Circuiting. Each individual type of relay undergoes extensive TYPE TESTING by Research Design [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1241","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/rolexiron.com\/index.php\/wp-json\/wp\/v2\/pages\/1241","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rolexiron.com\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/rolexiron.com\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/rolexiron.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rolexiron.com\/index.php\/wp-json\/wp\/v2\/comments?post=1241"}],"version-history":[{"count":1,"href":"https:\/\/rolexiron.com\/index.php\/wp-json\/wp\/v2\/pages\/1241\/revisions"}],"predecessor-version":[{"id":1242,"href":"https:\/\/rolexiron.com\/index.php\/wp-json\/wp\/v2\/pages\/1241\/revisions\/1242"}],"wp:attachment":[{"href":"https:\/\/rolexiron.com\/index.php\/wp-json\/wp\/v2\/media?parent=1241"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}